Describe the molecular and genetic evidence from extant and extinct organisms that indicates all organisms on earth share a common ancestral origin of life.

Current time is part of which era? Cenozoic Era Mesozoic Era Precambrian time Paleozoic Era

Gary has a piece of diamond and a piece of graphite. He wants to test the hardness of these two minerals. When he rubs the diamond against the piece of graphite, the graphite gets scratched.

How is carbon dioxide removed from the atmosphere

What sphere dose water flow

According to the law of supply and demand, what would occur if the supply of oil decreased, but the demand remained the same? A) Oil prices would increase B) Oil prices would decrease C) Oil usage would increase D) Oil usage would decrease

The amount of light and temperature are examples of

Sexual reproduction by protozoa is most likely conducted by?

What happens in cellular respiration if there is not enough oxygen

What are two ways a population can decrease in size?

In which part of the sun do gases heat up and rise and then cool down and sink? Convective zone Inner core Photosphere Radiative zone